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Co-existence of the double inferior vena cava with complex interiliac venous communication and aberrant common hepatic artery arising from superior mesenteric artery: a case report

100%

Chentanez V. , Nateniyom N. , Huanmanop T. , Agthong S.

Folia Morphologica

2018

tom 77

nr 1

Variations of the arterial and venous system of the abdomen and pelvis have important clinical significance in hepatobiliary surgery, abdominal laparoscopy, and radiological intervention. A case of double inferior vena cava (IVC) with complex interiliac communication and variation of the common hepatic artery (CHA) arising from superior mesenteric artery (SMA) in a 79-year-old male cadaver is presented. Both IVCs ascended on either side of the abdominal aorta. The left-sided IVC crossed anterior to the aorta at the level of the left renal vein. The union of both IVCs was at the level just above the right renal vein. The diameter of right-sided IVC, left-sided IVC and the common IVC were 16.73 mm, 21.57 mm and 28.75 mm, respectively. In the pelvic cavity, the right common iliac vein was formed by a union of right external and internal iliac veins while the formation of left common iliac vein was from the external iliac vein and two internal iliac veins. An interiliac vein ran from right internal iliac vein to left common iliac vein with an additional communicating vein running from the middle of this interiliac vein to the right common iliac vein. Another co-existence variation in this case was the origin of the CHA arising from the SMA with a suprapancreatic retroportal course. Clinical importance of double IVC are observed in retroperitoneal surgery, whole organ transplantation or radical nephrectomy, surgical ligation of the IVC or the placement of an IVC filter for thromboembolic disease. The variation of CHA has an important clinical significance in liver transplantation, abdominal laparoscopy and radiological abdominal intervention. (Folia Morphol 2018; 77, 1: 151–155)

Morphometric study of inferior peroneal retinaculum and contents of inferior peroneal tunnel

88%

Dangintawat P. , Apinun J. , Huanmanop T. , Agthong S. , Chentanez V.

Folia Morphologica

2019

tom 78

nr 3

Background: The aims of this study are to investigate the inferior peroneal retinaculum (IPR) regarding morphometric parameters, and contents in the inferior peroneal tunnel (IPT). Materials and methods: One hundred and nine embalmed cadaveric legs were dissected in prone position. Results: The extension band of the IPR was found in 31.19% of cases. The mean of length, width at the origin, width at the middle part, width at the insertion, and thickness of the IPR [mm] were 23.42 ± 3.54 (17.05–33.68), 13.29 ± 2.56 (5.83–20.92), 14.50 ± 2.37 (6.68–21.34), 10.10 ± 2.63 (4.59–19.17) and 0.48 ± 0.16 (0.20–0.87), respectively. The angle of the IPR to the horizontal axis was 38.51 ± 7.07 (11.67–54.00) degrees. The IPT was divided into the upper and lower tunnels. The normal contents were the tendons of peroneus brevis and peroneus longus in the upper and lower tunnels, respectively. However, additional contents were found in the upper tunnel in 2 cases. One was the tendon of peroneus digiti quinti, and peroneus quartus in the other one. Moreover, an unusual accessory peroneal muscle coursed into the lower tunnel and inserted on the peroneal tubercle. Tears of the peroneus brevis tendon were observed in 2 cases. Conclusions: These morphometric data might be beneficial in surgical repair for IPR injury. (Folia Morphol 2019; 78, 3: 582–587)